Sequential Optical Detection Apparatus Reducing Component Count
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Solution Overview
Problem
Conventional multi-light source optical measurement systems face high manufacturing costs due to the need for paired light emission and receiving units, complex electrical circuits, and additional shielding structures, which hinder cost reduction and system simplification.
Innovation Solution
An optical detection apparatus with a driving unit that adjusts the relative position of light emission units and a sample, allowing light beams to pass through sequentially, reducing the number of light receiving units needed and eliminating the need for paired designs and shielding structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light emission units and light receiving units are disposed in pairs to intercept straight light, then light utilization efficiency is maximized, but manufacturing cost increases and system complexity increases
Solution Approach 1:
Multiple light emission units share a single light receiving unit. Instead of pairing each emission unit with its own receiving unit, the patent combines multiple emission units (first, second, and third light emitting devices) to share one receiving unit, thereby reducing system complexity and manufacturing cost while maintaining light utilization efficiency through sequential measurement
2Measurement precision
If shielding structures are disposed between light emission units and light receiving units to avoid stray light interference, then measurement accuracy is improved, but manufacturing cost increases and design difficulty increases
Solution Approach 1:
The patent employs dynamic sequential activation of light emission units rather than static shielding structures. The control unit activates light emitting devices one at a time in sequence, and the light receiving unit measures each sequentially, eliminating the need for physical shielding structures while maintaining measurement accuracy through temporal separation of light sources
3Measurement precision
If each light receiving unit has its own analyzing circuit to process signals, then measurement capability is improved, but electrical circuit complexity increases
Solution Approach 1:
A single analyzing unit serves multiple light emission units by processing signals from the shared light receiving unit. The control unit coordinates the sequential operation and data processing for all light emitting devices, making the analyzing circuit universal rather than dedicated to each individual emission-reception pair, thereby reducing electrical circuit complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces manufacturing costs by minimizing the number of light receiving units and simplifying the system design, while maintaining measurement precision and accuracy by ensuring only aligned light emission units emit beams, thereby improving system efficiency.
Implementation Method 1
The light receiving unit is capable of receiving the light beam passing through the sample and is capable of converting the light beam passing through the sample to an electrical signal
Data Source
AI summary
An optical detection apparatus which is capable of measuring a sample is provided. The optical detection apparatus includes a plurality of light emission units, a light receiving unit, a driving unit, and an analyzing unit. Each of the light emission units is capable of emitting a light beam. The light receiving unit is capable of receiving the light beam passing through the sample and is capable of converting the received light beam to an electrical signal. The driving unit is capable of changing the relative position of the light emission units and the sample. The analyzing unit is electrically connected to the light receiving unit and is capable of measuring a property of the sample by using the electrical signal. A number of the light receiving unit is less than a number of the light emission units. An optical measurement system including the optical detection apparatus is also provided.